Active NPI 1013982784 Individual Practitioner Male Practitioner

Dr. John Christopher Henry , MD

Specialist • Frederick, MD

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Henry, MD is a certified Specialist practicing in Frederick, MD. With approximately 38 years of clinical experience since graduating from Georgetown University School Of Medicine in 1988, Dr. Henry delivers high-quality medical care to the local community at 174 THOMAS JOHNSON DR.

Dr. Henry accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, exam of visual field with extended testing. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

174 Thomas Johnson Dr
Suite 204

Frederick, MD 217024423

Telephone 3012282943

Fax 3012282945

Associated Practice Facility / Clinic

🏢 Dr. Robert H. Mayernik, Llc Facility NPI 1083739411

Medicare Profile & Education

Medical School

Georgetown University School Of Medicine

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Frederick, MD

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +3.0 yrs vs City Avg

City Avg: 35.0 Yrs

State Avg: 36.9 Yrs

Regional Practice Density

25 Specialists

Practicing in Frederick, MD (1034 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Henry (38 Years) 38 Yrs

Frederick Specialty Average (35.0 Years) 35.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	343	198	$175.00	$134.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	218	218	$280.00	$175.53
92083 Exam of visual field with extended testing	201	116	$130.00	$66.33
92201 Extended exam of the back part of the eye with retinal drawing	134	128	$45.00	$25.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$180.00	$117.66
99213 Established patient office or other outpatient visit, typically 15 minutes	62	53	$125.00	$94.80
92060 Exam to measure eye deviation and range of motion	41	34	$100.00	$66.02
67840 Removal of eyelid growth	37	34	$464.86	$301.75
92133 Imaging of optic nerve	24	23	$90.00	$35.42
92202 Extended exam of the back part of the eye with optic nerve drawing	24	21	$40.00	$16.24
68840 Probing of nasal-tear duct	18	17	$347.22	$171.84
92020 Examination of cornea and iris using lens device and slit lamp	15	14	$45.00	$28.77
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less	14	14	$1714.29	$769.23
67904 Repair of tendon of upper eyelid	14	12	$2428.57	$823.24
67904 Repair of tendon of upper eyelid	13	13	$3576.92	$908.03
15823 Removal of excessive skin and fat of upper eyelid	12	12	$3733.33	$435.11
92082 Exam of visual field with intermediate testing	11	11	$100.00	$48.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	381	218	$175.00	$126.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	265	265	$280.00	$166.59
92083 Exam of visual field with extended testing	223	149	$130.00	$63.15
92201 Extended exam of the back part of the eye with retinal drawing	150	145	$45.00	$24.29
92060 Exam to measure eye deviation and range of motion	76	65	$100.00	$61.79
92082 Exam of visual field with intermediate testing	46	44	$100.00	$47.41
92133 Imaging of optic nerve	44	42	$90.00	$34.75
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$180.00	$113.01
99213 Established patient office or other outpatient visit, typically 15 minutes	39	34	$125.00	$91.17
92202 Extended exam of the back part of the eye with optic nerve drawing	35	34	$40.00	$15.63
92020 Examination of cornea and iris using lens device and slit lamp	27	27	$45.00	$27.94
67840 Removal of eyelid growth	21	21	$438.10	$279.38
68840 Probing of nasal-tear duct	16	16	$359.38	$164.52
37609 Tying or biopsy of temporal artery (side of skull)	13	12	$900.00	$207.38
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less	12	11	$1600.00	$781.50
76514 Ultrasound scan of cornea to determine thickness	12	12	$25.00	$11.20
67904 Repair of tendon of upper eyelid	12	11	$2991.67	$818.02
15823 Removal of excessive skin and fat of upper eyelid	11	11	$2809.09	$392.10
15630 Transfer of skin flap to eyelids, nose, ears, or lips	11	11	$2000.00	$322.42
67904 Repair of tendon of upper eyelid	11	11	$2381.82	$825.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	370	219	$175.00	$129.81
92083 Exam of visual field with extended testing	140	106	$130.00	$64.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	134	134	$180.00	$115.89
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	130	130	$280.00	$170.14
92201 Extended exam of the back part of the eye with retinal drawing	126	121	$45.00	$25.04
92060 Exam to measure eye deviation and range of motion	79	66	$100.00	$63.11
99213 Established patient office or other outpatient visit, typically 15 minutes	62	50	$125.00	$93.43
92202 Extended exam of the back part of the eye with optic nerve drawing	51	47	$40.00	$15.78
92082 Exam of visual field with intermediate testing	35	35	$100.00	$47.88
92133 Imaging of optic nerve	31	29	$90.00	$36.24
92020 Examination of cornea and iris using lens device and slit lamp	27	23	$45.00	$27.65
67904 Repair of tendon of upper eyelid	20	20	$2625.00	$816.67
67840 Removal of eyelid growth	15	15	$400.00	$292.77
15823 Removal of excessive skin and fat of upper eyelid	14	14	$2382.14	$403.67
76514 Ultrasound scan of cornea to determine thickness	13	13	$25.00	$11.62
68840 Probing of nasal-tear duct	12	12	$354.17	$171.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	444	255	$175.00	$133.23
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	185	185	$180.00	$116.46
92201 Extended exam of the back part of the eye with retinal drawing	162	155	$45.00	$25.81
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	155	155	$280.00	$173.50
92083 Exam of visual field with extended testing	126	100	$130.00	$65.93
92060 Exam to measure eye deviation and range of motion	102	82	$100.00	$64.65
99213 Established patient office or other outpatient visit, typically 15 minutes	68	55	$125.00	$95.38
92202 Extended exam of the back part of the eye with optic nerve drawing	58	58	$40.00	$16.23
92133 Imaging of optic nerve	45	44	$90.00	$36.58
92020 Examination of cornea and iris using lens device and slit lamp	35	31	$45.00	$28.37
67840 Removal of eyelid growth	32	30	$425.00	$301.68
92082 Exam of visual field with intermediate testing	28	28	$100.00	$48.02
92250 Photography of the retina	18	18	$130.00	$38.60
67904 Repair of tendon of upper eyelid	16	16	$2625.00	$891.57
15823 Removal of excessive skin and fat of upper eyelid	15	15	$2416.67	$452.90
68840 Probing of nasal-tear duct	15	15	$366.67	$185.63
76514 Ultrasound scan of cornea to determine thickness	13	13	$25.00	$11.93
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less	13	13	$1600.00	$653.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	371	241	$175.00	$111.91
92202 Extended exam of the back part of the eye with optic nerve drawing	178	172	$40.00	$16.30
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	150	150	$180.00	$111.22
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	137	137	$280.00	$169.10
92083 Exam of visual field with extended testing	113	92	$130.00	$64.92
92060 Exam to measure eye deviation and range of motion	69	59	$100.00	$65.38
99213 Established patient office or other outpatient visit, typically 15 minutes	52	43	$125.00	$77.63
92201 Extended exam of the back part of the eye with retinal drawing	44	44	$45.00	$25.91
92133 Imaging of optic nerve	44	44	$90.00	$36.32
92020 Examination of cornea and iris using lens device and slit lamp	37	35	$45.00	$28.01
67840 Removal of eyelid growth	17	17	$447.06	$288.80
76514 Ultrasound scan of cornea to determine thickness	13	13	$25.00	$12.33
68840 Probing of nasal-tear duct	11	11	$409.09	$179.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	590	311	$175.00	$110.47
92225 Examination of eye by ophthalmoscope with retinal drawing	345	175	$50.00	$27.94
92226 Examination of eye by ophthalmoscope with retinal drawing	236	110	$40.00	$25.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	208	208	$180.00	$110.67
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	155	155	$280.00	$166.54
92083 Exam of visual field with extended testing	132	109	$130.00	$64.61
99213 Established patient office or other outpatient visit, typically 15 minutes	121	82	$125.00	$76.00
92060 Exam to measure eye deviation and range of motion	79	67	$100.00	$64.40
92020 Examination of cornea and iris using lens device and slit lamp	55	50	$45.00	$27.82
92133 Imaging of optic nerve	30	29	$90.00	$34.23
67904 Repair of tendon of upper eyelid	26	26	$2365.38	$817.61
67820 Removal of eyelashes using forceps	26	13	$110.77	$37.84
15823 Removal of excessive skin and fat of upper eyelid	23	23	$1865.22	$478.48
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	19	15	$400.00	$1.57
92250 Photography of the retina	18	18	$130.00	$47.94
67515 Injection of medication or substance into membrane covering eyeball	17	15	$185.29	$84.07
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less	16	16	$1562.50	$805.38
67840 Removal of eyelid growth	16	16	$450.00	$306.65
76514 Ultrasound scan of cornea to determine thickness	14	14	$25.00	$12.44
68840 Probing of nasal-tear duct	11	11	$318.18	$176.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	483	272	$175.00	$109.22
92225 Examination of eye by ophthalmoscope with retinal drawing	355	177	$50.00	$27.88
92226 Examination of eye by ophthalmoscope with retinal drawing	228	97	$40.00	$25.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	167	167	$180.00	$110.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	153	153	$280.00	$167.71
99213 Established patient office or other outpatient visit, typically 15 minutes	130	94	$125.00	$74.36
92083 Exam of visual field with extended testing	100	86	$130.00	$65.15
92060 Exam to measure eye deviation and range of motion	95	82	$100.00	$66.14
92020 Examination of cornea and iris using lens device and slit lamp	60	49	$45.00	$27.09
92250 Photography of the retina	31	31	$130.00	$56.16
67840 Removal of eyelid growth	29	27	$441.38	$282.07
92133 Imaging of optic nerve	29	26	$90.00	$36.48
76514 Ultrasound scan of cornea to determine thickness	25	24	$25.00	$15.25
67904 Repair of tendon of upper eyelid	18	18	$2416.67	$848.50
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less	17	17	$1600.00	$781.12
68440 Snip incision of tear-drainage opening at inner corner of the eye	16	15	$575.00	$114.51
67917 Extensive repair of turning-outward eyelid defect	13	11	$2353.85	$685.59
67904 Repair of tendon of upper eyelid	13	12	$2307.69	$968.90
15823 Removal of excessive skin and fat of upper eyelid	13	13	$1776.92	$412.03
92012 Established patient problem focused exam of visual system	12	11	$140.00	$90.16
68840 Probing of nasal-tear duct	12	12	$333.33	$149.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	474	245	$175.00	$107.66
92225 Examination of eye by ophthalmoscope with retinal drawing	328	164	$50.00	$27.46
92226 Examination of eye by ophthalmoscope with retinal drawing	251	110	$40.00	$25.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	143	143	$280.00	$165.13
92083 Exam of visual field with extended testing	124	106	$130.00	$65.04
99213 Established patient office or other outpatient visit, typically 15 minutes	122	96	$125.00	$72.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	108	108	$180.00	$110.37
92004 New patient complete exam of visual system	86	86	$210.00	$149.45
92060 Exam to measure eye deviation and range of motion	85	72	$100.00	$65.67
92020 Examination of cornea and iris using lens device and slit lamp	77	73	$45.00	$27.14
92133 Imaging of optic nerve	47	45	$90.00	$36.94
67840 Removal of eyelid growth	40	38	$460.00	$271.68
76514 Ultrasound scan of cornea to determine thickness	37	36	$25.00	$14.90
92012 Established patient problem focused exam of visual system	34	32	$140.00	$85.58
92014 Established patient complete exam of visual system	29	28	$150.00	$126.53
92250 Photography of the retina	28	28	$130.00	$67.66
92082 Exam of visual field with intermediate testing	24	24	$100.00	$49.81
67904 Repair of tendon of upper eyelid	23	23	$2869.57	$906.67
15823 Removal of excessive skin and fat of upper eyelid	22	22	$2100.00	$431.98
67820 Removal of eyelashes using forceps	19	15	$113.68	$51.76
68840 Probing of nasal-tear duct	17	17	$397.06	$165.94
92002 New patient problem focused exam of visual system	17	17	$135.00	$83.10
67917 Extensive repair of turning-outward eyelid defect	13	13	$2630.77	$452.13

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License MD D0039970

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

225281300 (MD)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

8 Associated Practitioners

Dr. Richard Holz , MD

Obstetrics & Gynecology - Gynecology

NPI 1033195987

Doctor of Medicine (M.D.)

Dr. Salam Zughayer , DO

Psychiatry & Neurology - Neurology

NPI 1205950045

Doctor of Osteopathic Medicine (D.O.)

Dr. Ernest Clevinger , MD

Psychiatry & Neurology - Neurology

NPI 1235176769

Doctor of Medicine (M.D.)

Dr. John Golski , DDS

Dentist - Periodontics

NPI 1285859611

Doctor of Dental Surgery

Dr. Jeffrey Herrell , DDS

Dentist - General Practice

NPI 1881672459

Doctor of Dental Surgery

Dr. Charles Knapp , DDS, MA, MS

Dentist - Periodontics

NPI 1912046814

Doctor of Dental Surgery, Master of Arts, Master of Science

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active November 13, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location November 13, 2008

Registered at 174 THOMAS JOHNSON DR, SUITE 204, FREDERICK, MD 217024423 (Tel: 3012282943)

📍

Updated Business Mailing Address November 13, 2008

Registered at 174 THOMAS JOHNSON DR, SUITE 204, FREDERICK, MD 217024423 (Tel: 3012282943)

👤

Provider Name / Credentials Updated November 13, 2008

Recorded as JOHN HENRY, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 13, 2008

Specialist (License #D0039970 in MD)

🟢

Initial NPI Registration & Enumeration February 17, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1013982784

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: February 17, 2006

Last Update: November 13, 2008

Sole Proprietor: No

Update or Correct Profile

Mailing Address

174 Thomas Johnson Dr, Suite 204

Frederick, MD 217024423

Phone: 3012282943

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.